Runcast 32 - Man finishes 250 marathons in 2010 / Are we reaching human running speed limit?

Martin Parnell is about to finish his quest to run 250 marathons in 2010. He talks to Natalie about his amazing feat.

Are we reaching the final limit of human running speed? Some sports scientists don’t think so. We bring you the pros and cons.

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Links:

Martin Parnell's Marathon Quest 250
List of Running Records - From 100m to Marathon
The Guardian: Scientists do not know how fast people can run
Runner Dude's Holiday Gifts for Runners